Method and apparatus for managing the usage of data link resources

• US 7,277,392 B2
• Filed: 10/01/2002
• Issued: 10/02/2007
• Est. Priority Date: 10/01/2002
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Venteicher, Chris, Willis, Lawrence, Ryan, William
• Primary Examiner(s): Feild; Joseph
• Assistant Examiner(s): MEHRA, INDER P
• Application Number:
  US10/263,065
• Publication Number:
  US 20040062262A1
• Time in Patent Office: 1,827 Days
• Field of Search: 370/337, 370/348, 370/347, 370437-441, 370465-468, 370319-329, 370335-342, 4554522-450, 455509-517, 709/227, 709203-226
• US Class Current: 370/237
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/19 at layers above the network layer network arrangements for networked applications for scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/745 Reaction in network
• CPC Class Codes: H04L 47/765 triggered by the end-points
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 47/824 Applicable to portable or mobile terminals
• CPC Class Codes: H04L 47/83 based on usage prediction
• CPC Class Codes: H04W 72/27 between access points
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

The present invention manages data link resources in a wireless communication device by managing the data link resource needs of multiple client applications including the creation and sharing of data link resources. If the requested data link resources can be accommodated by the already established data link resources (106), then one or more of the already established data link resources are shared (108) with the application making the request for data link resources. If the requested data link resources can not be accommodated by the already established data link resources, then the data link resources are upgraded (110) to accommodate the additional requirements of the received request.

Claims

1. A method for managing usage of data link resources associated with one or more data links, communicatively coupling a wireless communication device and a wireless network, being used by one or more applications operating in association with the wireless communication device comprising:

receiving a request for data link resources from an application;

comparing the requested data link resources with available data link resources associated with already established data links;

determining whether the request for data link resources can be accommodated by the already established data links;

if the requested data link resources can be accommodated by the already established data links, then sharing one or more of the already established data links with die application making the request;

if the requested data link resources can not be accommodated by the already established data links, then the available data link resources are upgraded to accommodate the requested data link resources.

2. The method in accordance with claim 1 wherein upgrading the available data link resources to accommodate the requested data link resources includes one or more of

establishing a new primary context data link,

establishing anew secondary context data link in association with an already existing primary context data link, and

increasing a quality of service of an already established data link.

3. The method in accordance with claim 2 wherein when establishing a new primary or secondary context data link, a cost of different types of data links, which will accommodate the requested data link resources is compared with each other, and the data link which accommodates the requested data link resources and has the lowest cost is selected.

4. The method in accordance with claim 2 wherein the quality of service of a data link is defined as different levels of background, interactive, streaming or conversational.

5. The method in accordance with claim 4 wherein each of the different levels of interactive or streaming includes low, medium and high levels of service quality.

6. The method in accordance with claim 4 wherein streaming is distinguished between real time and non-real time, which is used to define differences in transfer delays relative to a predefined threshold.

7. The method in accordance with claim 2 wherein upgrading the data link resources to accommodate the requested data link resources additionally includes

checking a flag associated with the type of data link being established or the type of data link having the quality of service increased,

if the flag is set, then prompting a user of the wireless communication device for authorization to establish or increase the quality of service of the data link.

8. The method in accordance with claim 2 wherein establishing the new secondary context data link includes establishing a data link having a common address and access point as an already existing primary context data link.

9. The method in accordance with claim 1 wherein establishing a new data link or sharing one or more of the already established data links includes creating an additional socket, on each of the one or more data links being established or shared.

10. The method in accordance with claim 9 wherein the additional socket includes a count down timer having a value, which is decremented when data is not being transferred on the additional socket.

11. The method in accordance with claim 10 wherein decrementing the count down timer includes, comparing the value of the count down timer to a lower threshold, and if the value is lower than the lower threshold, then releasing the data link resources associated with the additional socket.

12. The method in accordance with claim 11 wherein releasing the data link resources associated with the socket includes downgrading the available data link resources including one or more of:

decreasing the (quality of service of an already established data link for which associated data link resources have been released to a level of service which minimally accommodates any associated non-released data link resources, and

terminating a data link for which all of the associated data link resources have been released.

13. The method in accordance with claim 12 wherein decreasing the quality of service of an already established data link includes switching to a more cost effective data link, where the more cost effective data link can support the associated non-released data link resources.

14. The method in accordance with claim 1 wherein determining whether the request for data link resources can be accommodated by an already established data link includes:

determining whether the requested data link resources are for an access point which is same as an access point for an already established data link;

determining whether the requested data link resources are for a user which is same as a user for an already established data link;

determining whether the one or more applications already using the already established data link, and die application requesting data link resources are willing to share a data link; and

determining whether a quality of service of the already established data link can support both data link resources of the one or more applications already using the data link and the requested data link resources of the application requesting data link resources.

15. The method in accordance with claim 1 wherein receiving a request for data link resources includes

receiving a set of parameters defining requirements for the data link resources being requested, and

supplying from a default list of parameters any parameters, which are missing from the set of parameters received.

16. A data link resource manager comprising:

a processor;

a storage unit coupled to said processor for storing one or more sets of instructions for execution by the processor including

prestored instructions for receiving a request for data link resources from an application and comparing the requested data link resources with available data link resources associated with already established data links; and

prestored instructions for determining whether the request for data link resources can be accommodated by the already established data link resources, and if the requested data link resources can be accommodated by the already established data link resources, then sharing one or more of the already established data link resources with the application making the request, otherwise if the requested data link resources can not be accommodated by the already established data link resources, ten upgrading the available data link resources to accommodate the requested data link resources.

17. The data link resource manager of claim 16 wherein prestored instructions which upgrade the available data link resources to accommodate the requested data link resources includes prestored instructions for one or more of selectively establishing a new primary context data link, selectively establishing a new secondary context data link in association with an already existing primary context data link, and selectively increasing a quality of service of an already established data link.

18. The data link resource manager of claim 16 wherein the data link resource manager is incorporated as pad or a wireless communication device.

19. The data link resource manager of claim 18 wherein the application requesting resources is an application operating in a separate external device communicatively coupled to the wireless communication device.

20. The data link resource manager of claim 18 wherein the application requesting resources is an application operating in the wireless communication device.

21. A data link resource manager comprising:

a data session event handler coupled to one or more client applications for receiving a request for data link resources;

a proxy manager coupled to the data session event handler for creating a proxy instance including a signaling context and one or more protocol stacks for maintaining a data session; and

a link manager coupled to the proxy manager for creating a link instance including an interface for controlling the signaling context and a link protocol.

22. A data link resource manager of claim 21 wherein the proxy manager includes a default proxy descriptor including a set of default parameters for establishing a data session in absence of one or more parameters from the one or more client applications, when the one or more client applications are making a request for data link resources.